Improvement in locomotive car-trucks



R H. LONG.

Car Truck.

' Patented Aug. 2, 1864.

Inventor,

Witnesses:

AM PHOTO-LITHO. CO. NM (OSBORPES PRCCESS) UNITED STATES PATENT OFFICE.

ROBERT H. LONG, OF PHILADELPHIA PENNSYLVANIA,ASSIGNOR TO HIM- SELF, JOSEPH GRIGE, OF NEW YORK, N. Y., AND SAMUEL B. GRIOE, OF

PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN LOCOMOTIVE CAR-TRUCKS.

Specification forming part of Letters Patent No. 43,739, dated August 2, 1864.

T all whom it may concern:

Be it known that I, ROBERT E. LONG, of

v the city of Philadelphia, in the county of Phil adelphia and State of Pennsylvania, have invented a new and useful Improvement in the Running-Gear of ltaihoad Cars and Locomotives and I do hereby declare that the following is a full, clear, and exact description ofthe s une, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a top view of the running-gear of a car illustrating my invention, the bottom or main frame of the car being shown in red outline. Fig. 2 is a central longitudinal sec tion of the running-gear and bottom of the car. Fig. 3 is a transverse vertical section of the same in the plane indicated by the line a: w in Fig. 2.

Similar letters of reference indicate corresponding parts in all the figures.

The object of this invention is to enable railroad cars or locomotives to turn or Fcurve more freely, more especially on curves of short radius, such as are used in city railroad-tracks; and to this end it consists in the combination, at one end of the car-or locomotive, ofa fourwheel truck or frame and a vibrating truck or frame, the four-wheel truck' or frame having the axles arranged within it in the usual manner, and beingpivoted between the axles to the vibrating trick or frame, and the latter being pivoted to the main frame or body of the car or locomotive at a point not over or between the axles.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A is the mainframe or bottom of the ear- -body. At the forward end a pair of wheels,

body, pivots it to the vibrating truck or frame E E, which is pivoted to the car-body by a bolt, 1), at a point some distance in front of the truck 0, in 'a line passing longitudinally through the center of the car. The rear end of the car-body is supported on a series ofrollers,d d, the axles or journals of which are arranged in hearings in the arc-formed portion E of the vibrating truck or frame, which is concentric with the bolt 1), and through which the bolt a passes. The portion of the bottom of the body which bears upon the said rollers is faced with aplate of iron, 0. The vibrating truck or frameE E is supported upon the lower truck, 0, by means of two rollers,ff, the axles or journals of which are fitted to bearings pro vided at the ends of the bolster of the said truck 0, and in this way the weight of the rear end of the car is transmitted to the truck (3.

In turning curves the truck-axles D D are permitted to have two movements-viz., the

movement with the lower truck, 0, about the bolt a, and the movement with the upper or vibrating truck about the bolt B and hence their wheels adapt themselves more easily to the rails, and in turning short curves so much of the body of the car is not allowed to hang over the outside of the truck as is the case when only a centrally-pivoted truck, like G,or a vibratingtruck, like E E,is employed singly.

At or near each side of the frame A there is secured a stop, g, to prevent the truck or frame EE from vibrating farther than is necessary.

The invention is applied to a locomotive in the same manner as to a car, and may be applied to either end, according to the arrangement of the driving wheels.

What I claim as myinvention, and desire to secure by Letters Patent, is l The combination, at one end of the car or locomotive, of afour wheel truck, (3, and a vibrating truck, E E, pivoted together and to the car-body in the manner as and for the purpose herein set forth. I

ROBT. H. LONG.

Witnesses:

GEo. W. GRIGE, SAM. B. GRICE. 

